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jsPerf.app is an online JavaScript performance benchmark test runner & jsperf.com mirror. It is a complete rewrite in homage to the once excellent jsperf.com now with hopefully a more modern & maintainable codebase.

jsperf.com URLs are mirrored at the same path, e.g:

https://jsperf.com/negative-modulo/2

Can be accessed at:

https://jsperf.app/negative-modulo/2

Test case details

Title *

Description
(Markdown syntax is allowed)

Preparation Code

Preparation HTML
(this will be inserted in the <body> of a valid HTML5 document in standards mode)
(useful when testing DOM operations or including libraries)

<div id="1"></div>
<div id="2"></div>
<div id="3"></div><script src="//ajax.googleapis.com/ajax/libs/jquery/1/jquery.min.js"></script>

Setup JS

Teardown JS

Test cases

Test #1

Title *

Async

Code *

$('#1').css('background-color','red');
$('#2').css('background-color','green');
$('#3').css('background-color','blue');

Test #2

Title *

Async

Code *

$('#1').css('background-color','#F00');
$('#2').css('background-color','#0F0');
$('#3').css('background-color','#00F');

Test #3

Title *

Async

Code *

$('#1').css('background-color','rgb(255,0,0)');
$('#2').css('background-color','rgb(0,255,0)');
$('#3').css('background-color','rgb(0,0,255)');